21 December 2016 On the reversible hydrogen storage in Mg(BH4)2 under moderate conditions
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Proceedings Volume 10174, International Symposium on Clusters and Nanomaterials; 101740A (2016) https://doi.org/10.1117/12.2235076
Event: International Symposium on Clusters and Nanomaterials, 2015, Richmond, Virginia, United States
Abstract
Mg(BH4)2 contains 14.9 mass% of hydrogen and is considered as a promising hydrogen storage material. Reversible hydrogen sorption under moderate conditions represents a main challenge for Mg(BH4)2 being utilized for solid-state hydrogen storage. Here, we achieve the reversible storage of 4.0 mass% of hydrogen at 265°C in Mg(BH4)2. That is, desorption of 7.5 mass% H at 265°C under vacuum and absorption of 4.0 mass% at 265°C and 160 bar H2. 11B MAS NMR measurements indicate that the reversible hydrogen sorption involves the formation of a decisive intermediate which shows a major resonance with a chemical shift at -50.0 ppm. The phase evolution in the hydrogen cycles as well as the capacity loss in the hydrogen sorption cycles is discussed.
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Yigang Yan, Yigang Yan, Daniel Rentsch, Daniel Rentsch, Arndt Remhof, Arndt Remhof, "On the reversible hydrogen storage in Mg(BH4)2 under moderate conditions", Proc. SPIE 10174, International Symposium on Clusters and Nanomaterials, 101740A (21 December 2016); doi: 10.1117/12.2235076; https://doi.org/10.1117/12.2235076
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